besides vs for sake of

besides

prep

  • In addition to. 

  • Other than; except for; instead of. 

  • Beside, next to. 

adv

  • Used to emphasize an additional point, especially an important or stronger reason; moreover; furthermore. 

  • Otherwise; else. 

  • Also; in addition. 

for sake of

prep

  • Because of, for the sake of. 

How often have the words besides and for sake of occurred in a corpus of books? (source: Google Ngram Viewer )